Step aside Donald Trump, Lee Iacocca, Akio...

Step aside Donald Trump, Lee Iacocca, Akio Morita and all you other businessmen/authors with your notions of how to run companies.

The newest trend-setter may be Hector Davila, author of “Mafia Management: What the Mafia Can Teach You About Management.”

Davila’s work is not a put-on, says Sandra Gruberman, a spokeswoman for Davila’s Hollywood-based publishing company, HLD.

“We’re emphasizing the positive things you can learn from the Mafia,” she explained.

Chapter titles include “Striving for Monopoly,” “Mafia Structure is More Like McDonald’s,” and “America’s Great Usurers.”

Gruberman said one example of Davila’s philosophy is “undercutting rivals in price until the competition is eliminated, which is a perfectly legal way of doing business.”

Davila, whose previous book was the little-noticed “How to Find a Rich Man,” has filled the 64 pages of “Mafia Management” with quotes from government documents, newspaper articles and Mario Puzo’s novel “The Godfather.”

Davila’s rivals will have no trouble undercutting him in price. The spiral-bound book, which is available on a mail-order basis, sells for $59.95. Sounds like an offer most anyone could refuse.

While Donald Trump talks about leveling the Ambassador Hotel and Al Davis talks of doing the same to the Coliseum, preservationists are at least battling to save parts of Calabasas’ Old Town.

The San Fernando Valley community’s name--which means “pumpkins” in Spanish--supposedly derives from a wagon that spilled a load of the fruit there on its way to L.A. (the 19th-Century version of a Sigalert on the Ventura Freeway).

Although Calabasas is now a respectable, upscale community, it once was the subject of numerous “tales of lawlessness,” as Westways magazine once put it.

In one particularly argumentative card game in the town saloon, a player was said to have been thrown into a well, followed by sticks of dynamite.

Which explains why a common insult of the period in Southern California was the expression: “He’s from Calabasas.”

Elvis-Head Sightings (cont.):

A rainstorm in Ridgeland, Miss., delayed plans for an auction of the floral noggin of the King, currently sitting in front of the Northpark Mall in Ridgeland. The 1,400-pound float, which rode in the Tournament of Roses Parade on New Year’s Day, was covered with plastic Wednesday because it’s too large to fit in the entrance.

Meanwhile, Starbridge Communications of Sherman Oaks announced that a nationwide Elvis tracking network has been established. Fans willing to fork over $2 for a one-minute call may dial a 900 line and hear the locations of supermarkets, restaurants, etc., where the singer has been spotted.

Next, perhaps, we should get a Donald Trump line.

While Frederick’s of Hollywood recently founded a much-needed Bra Museum, historians have ignored other types of intimate apparel.

Until Friday, that is, when Jockey International promises to “trace the milestones in underwear and hosiery” for the Men’s Fashion Assn. at the Biltmore.

The 9 a.m. presentation will skip past the industry’s crucial, early Fig-Leaf and Loincloth periods. Instead, Jockey says it will delve into 19th and 20th Century underwear, with film clips of the Keystone Kops, Marlene Dietrich and Al Capone.

Surely you remember those great old Al Capone underwear ads.